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Finding the Fourth Proportional to 568.82, 780.38 and 541.28

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Solution

The fourth proportional to 568.82, 780.38 and 541.28 is: 742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.82 : 780.38 = 541.28 : x
  2. Step 2: Convert to fraction form
    568.82/780.38 = 541.28/x
  3. Step 3: Cross multiply
    568.82x = 780.38 × 541.28
  4. Step 4: Simplify right side
    568.82x = 422,404.09
  5. Step 5: Solve for x
    x = 422,404.09/568.82
  6. Step 6: Final answer
    x = 742.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.